Sink strainer mounting means



May 5, 1970 W. E. POLITZ SINK STRAINER MOUNTING MEANS Filed June 23, 1967 Fig. I

I Fig. 3 a

WILL/AM HTZ INVENTOR.

United States Patent O 3,509,586 SINK STRAINER MOUNTING MEANS William E. Politz, Delphi, Ind., assignor to Stephen A. Young, Monticello, Ind. Filed June 23, 1967, Ser. No. 648,368 Int. Cl. E03c 1/26 US. Cl. 4190 1 Claim ABSTRACT OF THE DISCLOSURE The invention herein is directed to means for mounting a sink strainer which eliminates the necessity to thread a portion of the body of the strainer but at the same time enables rapid mounting and adjustment of the strainer in the drain outlet by the provision of a carrier in which are mounted machine screws which in conjunction with certain pressure members and the flange of the strainer make possible the sealing engagement of the flange with the outlet of the sink and by minimum application of simple tools.

This invention contemplates modifying the means for mounting a sink strainer and in this connection primarily strainers of the type in which baskets are ordinarily located to catch food particles and the like to prevent their passing into the drain, the basket being removable, all in accordance with conventional sink strainer construction.

As is common the usual sink strainer is provided with a relatively large diameter body reducing to a smaller area at the outlet end thereof, which outlet end is connected by a tail piece to the drain, the tail piece being maintained in connection with the sink strainer by a suitable slip nut.

In order to particularly point out the advance offered by this invention, it it noted that the sink strainer body in this instance is much more cheaply fabricated, as well as obviating the necessity for expensive machining operations thereon by the use of a carrier member in which are mounted certain set screws or machine screws which pro vide the necessary sealing tension of the flange and body to prevent leakage and obviate the necessity for large wrenches and availing of the services of two men to effect the mounting operation.

A particular object of the invention is to provide a sink strainer body which is threaded only at the tail piece end, a carrier being mounted on those threads which would be provided in any event for a slip nut, the carrier having suitable machine screws and of suitable number, as contemplated herein there being three provided, to effect the necessary pressurizing of the flange from beneath the sink body itself and in conjunction with the sealing gasket provided effectively seal the unit against leakage.

Other and further objects of the invention will be understood from a consideration of the specification appended hereto and disclosed in the drawing wherein:

FIGURE 1 is a vertical sectional view illustrating a fragment of a sink with the strainer mounted therein and the mounting means of this invention in place.

FIGURE 2 is a plan view of the carrier member of this invention.

FIGURE 3 is a sectional view taken about on the line 33 of FIGURE 2 looking in the direction of the arrows.

Referring now to FIGURE 1, a sink is indicated at 1 as being provided with the usual relatively large diameter opening 2 therein in which the sink strainer generally denoted 3 is mounted, the sink strainer 3 having a body 4 of cylindrical nature and relatively large diameter, in most instances about three inches, at the upper end of this body there being an outwardly extending flange 5 of sufiicient diameter to be seated at the opening 2 and rest Patented May 5, 1970 upon a surface 6 suitably formed so as to receive the flange 5 and in conjunction with means to be explained subsequently to prevent leakage from the sink as may be required.

The sink strainer body 4 is of relatively deep form so as to be able to support therein, a basket, not shown and not forming any part of this invention, the body 4 having at its lower end an outlet generally denoted 7, which outlet is of smaller diameter than the body 4 and provided with threads at 8, these threads being the usual relatively coarse threads which in the usual sink strainer are provided for mounting a conventional slip nut such as 9 thereon to in turn maintain a tail piece 10 in sealed relationship with the outlet 7 to carry off the water and other fluids from within the sink strainer body 4 and the sink 1 in which the said strainer is mounted.

The body 4 would in most cases and has heretofore always been provided with threads of similar nature to the threads 8 of the outlet end 7, but in this instance this body is not so provided, since means for mounting the strainer in the outlet 2. comprise different instrumentalities and include a pressure member 11, which is a disc as to the major portion thereof indicated at 12 with a down turned flange 13 at the inner periphery and a similar flange 14 at the outer periphery of said member 12.

This provides a relatively rigid pressure member as will be appreciated, which is designed in conjunction with a suitable gasket 15 to seal the body 4- by pressure against the flange 5 on the surface 6 of the sink 1.

In order to efiect the necessary pressurizing of the pressure member 11, a carrier 16 is provided, and more particularly shown in detail in FIGURES 2 and 3 as comprising a dished washer having a body section 17 of substantial diameter with a threaded opening 18 at its center portion, the dished configuration being provided by an upward and outwardly bent area 19, at the outer end of the area 19 there being cars 20, in this case three in number.

The ears 20 are spaced uniformly as indicated at degree intervals, and include suitable threaded openings 21 in each such ear.

Referring again to FIGURE 1, the ears 20 are shown as having mounted therein suitable screws 22 which screws are arranged to engage at their ends with the pressure member 11 and by application of a screw driver or other tool to the head 23 of each such member, suitably compress the gasket 15 to effect the necessary sealing action of the flange 5 on the surface 6 in the body of the sink 1.

It will be apparent from this disclosure that the thickness of the sink at the opening 2 may be of greater or read extent and suitably maintained therein by adjustment of the screws 22 as necessary.

It will also be understood that the threads 8 of the outlet end 7 are availed of for two purposes, namely the usual purpose of connecting the slip nut 9 thereto and in this instance the carrier 16 being also supported thereon.

The manner of installation of the sink strainer incorporating the concept of the present invention will be understood from the foregoing, namely the initial place ment of the body 4 in the opening 2, the subsequent positioning of the gasket 15 therearound and placement of the pressure member 11 with an immediate application of the carrier 16 on the threads 8, with the screws 22 in what may be termed a lowered or retracted position.

Thereafter suitable application of pressure through the screws 22 will effectively position the body within the opening 2 and thereafter the strainer outlet may be connected in the usual manner for its usual operation and use.

The advantage offered by eliminating the threads 1. In sink strainer construction of the class described,

having a shallow dish-shaped body section mounted on the threaded section aforesaid for adjustment therealong,

said carrier including ear portions formed integrally with the section in which portions threaded openings are formed, screw parts extending through said openings to engage the pressure member to sealingly maintain the strainer body in operative position at suchsink opening,

said threaded section being capable of receiving a conventional slip nut for attachment of a tail pipe in sealed relationship thereto.

References Cited UNITED 801,220 10/19051, 930,845 8/1909 1,450,629 4/1923 1,469,790 10/1923 2,323,224 6/1943 s 3 3,327,326 7 6(1967 Friedman .V T... 4286 FOREIGN PATENTS, v 421,378' 12/1910- France.

:LAVERNE Prinlafy Examiners D. B. MASSENBERGAESiStafit g I 

